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Species and cytotype diversity of invasive Symphyotrichum species in Central Europe
Varvažovská, Adéla ; Slovák, Marek (advisor) ; Hodálová, Iva (referee)
The cytotypic variability of Aster species of the genus Symphyotrichum is relatively well-explored within the territory of North America, where this species originates. Unfortunately, in Europe, where Asters were originally introduced as ornamental plants, they have received limited attention in terms of their overall as well as cytotypic variability. The number of publications and data concerning cytotypic variability and karyology in Europe is very limited, with some reporting the occurrence of several species and higher ploidy level species complexes. Asters naturalize in many places, capable of reproducing both vegetatively and generatively, and primarily colonize habitats disturbed by human activities. As a result, they have been classified as invasive plant species. From a biosystematic perspective, Asters constitute a highly complex group due to their high morphological and karyological variability. This situation is further complicated by the phenomenon of polyploidy and intense interspecific and intraspecific hybridization. These factors contribute to the challenging task of identifying individuals and populations and assigning them to specific taxa. The aim of this thesis was to clarify the cytotypic variability of wild-growing Aster species of the genus Symphyotrichum (Asteraceae) in the...
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Posklizňová kvalita řezaných květů
Kuncová, Tereza
The diploma thesis “Post-harvest Quality of Cut Flowers” aims at the description of solutions and technologies that are able to prolong the vase life of cut flowers and the other new products and techniques that lead to extending the storage time. The thesis also describes the factors that negatively influence the vitality of cut flowers and shorten the vase life. The development of the new solutions and techniques improves the care for the cut flowers, their durability and vitality. The practical part of this thesis covers the experiment which evaluates individual post-harvest commercial solutions. For the purpose of the experiment the Dahlia and Symphyotrichum had been chosen and the vase life of above-mentioned cut flowers was observed. The selected commercial solutions were FloraLife 300, FloraLife Express Clear ULTRA 200. Moreover, one of the solutions was homemade and included sugar and Savo original, which is a Chlorine- containing household disinfectant. The control sample was put into tap water.
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Sortimenty severoamerických aster rodu Symphyotrichum a jejich hodnocení v podmínkách středoevropského termofytika
Komárek, Pavel
This thesis deals with the evaluation renge of North American asters species Symphyotrichum Ness. Furthmore by their history, morphological, physiological, cultivation and introductionhistorical aspect. In this thesis was evaluated 85 kind and varieties of the genus Symphyotrichum Ness and existing range of collection ZF MENDELU expanded to 138 pieces autumn asters. Part of this work is to compare varieties of these specials and recommendations for the best of them, for gardeners, and for use in urban greenery.
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Hodnocení sortimentu podzimních aster z rodů Symphyotrichum a Eurybia
Komárek, Pavel
This bachelor's thesis mainly deals with the preliminary assessment of the range of genera of North American asters from Eurybia Cassini and Symphyotrichum Ness genus. Furthermore, their history, morphological, physiological, cultivation and the breeding aspect. It was provisionally evaluated 24 kinds and varieties of Symphyotrichum Ness genus and existing range of collections ZF MENDELU expanded to 140 pieces of North American asters.
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